From 3a51b65106147ccf6c503cdd443a36bcacbe4009 Mon Sep 17 00:00:00 2001
From: YDLIN <1924723909@qq.com>
Date: Fri, 27 Aug 2021 18:10:28 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A00541.=20=E5=8F=8D=E8=BD=AC?=
 =?UTF-8?q?=E5=AD=97=E7=AC=A6=E4=B8=B2II=20Swift=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0541.反转字符串II.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/problems/0541.反转字符串II.md b/problems/0541.反转字符串II.md
index 02713c65..bdcb0ff8 100644
--- a/problems/0541.反转字符串II.md
+++ b/problems/0541.反转字符串II.md
@@ -226,6 +226,28 @@ var reverseStr = function(s, k) {
 
 ```
 
+Swift:
+
+```swift
+func reverseStr(_ s: String, _ k: Int) -> String {
+    var ch = Array(s)
+
+    for i in stride(from: 0, to: ch.count, by: 2 * k) {
+        var left = i
+        var right = min(s.count - 1, left + k - 1)
+      
+        while left < right {
+            (ch[left], ch[right]) = (ch[right], ch[left])
+            left += 1
+            right -= 1
+        }
+    }
+    return String(ch)
+}
+```
+
+
+
 
 
 -----------------------